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公开(公告)号：US20240209547A1
公开(公告)日：2024-06-27
申请号：US18542841
申请日：2023-12-18
申请人： Stephan GERHARZ
发明人： Stephan GERHARZ
摘要： An apparatus for making filaments has a spinneret plate having a row of holes from which emerge filaments. A manifold distributes a supplied plastic melt over a starting spinning width. A filter plate is downstream of the manifold. A pack of distributor plates is downstream of the filter plate. The distributor plates each have a plurality of distributor holes distributed over a manifold width. The distributor holes receive the plastic melt emerging from the filter plate. The spinneret plate is downstream of the distributor-plate pack and has a row of spinneret passages extending over a final spinning width aligned with the spinneret holes. An output face of the filter plate turned toward the distributor-plate pack and/or an inlet face of the spinneret plate turned toward the distributor-plate pack is curved or crowned at least in sections.
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公开(公告)号：US20230366127A1
公开(公告)日：2023-11-16
申请号：US18245558
申请日：2021-09-21
申请人： GAMBRO LUNDIA AB
CPC分类号： D01D5/24 , D01D4/06 , D01D1/09 , B01D69/088 , D10B2331/14 , B01D2323/42 , B01D2323/50 , B01D2323/60
摘要： The present disclosure relates to a center fluid distributor for a multi-fiber spinneret for producing hollow fiber membranes in a phase inversion process.
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公开(公告)号：US20230082772A1
公开(公告)日：2023-03-16
申请号：US17800988
申请日：2021-02-05
发明人： Günter Schütt
摘要： A melt blowing nozzle apparatus for producing a plurality of fiber strands from a polymer melt has at least one melt inlet and at least one process air inlet. The apparatus further has a nozzle plate having a plurality of small tubes, each having a capillary bore for extruding the fiber strands, and an extrusion plate arranged underneath the nozzle plate, which extrusion plate has a plurality of extrusion openings for blowing out the fiber strands, corresponding to the small tubes. Each extrusion opening encloses one of the small tubes with an air gap. To ensure mountability in case of a large number of small tubes, a channel system of a common distribution device is provided for connection and distribution of the melt inlet to the capillaries of the small tubes and for connection and distribution of the process air inlet to the extrusion openings of the extrusion plate.
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公开(公告)号：US20230033920A1
公开(公告)日：2023-02-02
申请号：US17791516
申请日：2020-01-31
摘要： A method of making nonwoven webs comprising providing a spinneret including a pattern of conduits forming an extrusion region; directing only a first stream of molten propylene polymer into a region adjacent the first side of the spinneret, directing only a second stream of molten propylene polymer into a region distal to the first side of the spinneret, extruding only the first stream propylene polymer through the exit openings in a first zone where the exit opening comprises exit ports in the first zone having a first density; extruding only the second stream propylene polymer through the exit openings of a second zone where the exit opening comprises exit ports in the second zone having a second density less than the first density; and the second zone is distal to the first side with the first zone being between the second zone and the first side.
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公开(公告)号：US11377760B2
公开(公告)日：2022-07-05
申请号：US17418204
申请日：2019-12-29
申请人： SOFT N.W. S.p.A.
发明人： Ivan Papetti , Marco Rovellini , Daniele Sanella , Stefano Briga , Olmo Falco , Paolo Falco , Giovanni Verzoletto
IPC分类号： D01D4/02 , D01D4/06 , D01D4/08 , D01D5/088 , D01D5/098 , D01D7/00 , D01D13/02 , D04H3/16 , D01D13/00 , D04H3/02 , D04H3/14 , B29C65/00
摘要： An innovative plant (10) for the production with the “spun bonding” technology or similar of a web (V) of non-woven fabric, comprising: a melting station (11) suitable for receiving and melting a polymeric base material (MR), an extrusion bar or head (12) with a plurality of extrusion or drawing nozzles (12a) adapted to receive from the melting station (11) the polymeric material (MR) in the molten state to produce a plurality or bundle of continuous filaments (FF); a conveyor belt (13) adapted to advance along a direction of advancement (A) and to receive from the above the continuous filaments (F), produced by the extrusion nozzles (12a), so as to form a web (V) of non-woven fabric; and consolidation means (14) designed to consolidate the non-woven web (V) formed on the conveyor belt (13); wherein the plant (10) is characterized by a special structure (20) comprising a base platform (21), rotatable (f, f′, f″) around a respective vertical rotation axis (X), and wherein the melting station (11), suitable for receiving and melting the base polymeric material (MR), and the extrusion bar (12), suitable for receiving from the melting station (11) the polymeric material (MR) in the molten state, are totally built and solidly supported by this rotatable base platform (21) (f, f, f), so as to be rigidly connected to each other without the interposition of any rotating joint. Advantageously, the plant (10) allows to vary, without interrupting its operation, the width (L, L′, L″) of the non-woven web (V) produced by the same plant, by rotating (f, f′, f″) and adjusting the base platform (21) around the respective vertical rotation axis (X), so as to vary the inclination (a) of the extrusion bar (12) with respect to the direction of advancement (A) the conveyor belt (13).
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6.发明申请公开(公告)号：US20220106710A1
公开(公告)日：2022-04-07
申请号：US17398417
申请日：2021-08-10
摘要： According to an embodiment, an electrospinning head includes a nozzle and an uneven surface. The nozzle is made from an electrically conductive material, and a flow path is formed inside the nozzle. On the outer surface of the nozzle, an ejection port capable of ejecting a material liquid supplied to the flow path is formed. The uneven surface is formed in the vicinity of the projection port on the outer surface of the nozzle, and an uneven shape of the uneven surface is formed around the entire circumference of the circumferential direction of the nozzle and is along the extending direction of the flow path.
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公开(公告)号：US10751915B2
公开(公告)日：2020-08-25
申请号：US15348591
申请日：2016-11-10
发明人： Thomas R. Clark
IPC分类号： B29B7/32 , B29B7/88 , B29B13/02 , D01D5/08 , D01F6/62 , D01D4/06 , D01F1/06 , D01F1/04 , B29B7/74 , B29B7/94 , B29C48/05 , B29C48/025 , B29C48/425 , B29C48/435 , B29C48/36 , B29K67/00 , B29K105/26 , B29K105/00 , B29L31/00 , B29B7/42 , B29B7/72 , B29B7/46
摘要： A method of manufacturing a plurality of colors of bulked continuous carpet filament from a single multi-screw extruder which, in various embodiments, comprises: (A) passing PET through an extruder that melts the PET and purifies the resulting PET polymer melt; (B) splitting the extruded polymer melt into a plurality of melt streams and adding a colorant to each of the plurality of melt streams; (C) using one or more static mixers (e.g., thirty six static mixers) to substantially uniformly mix (e.g., homogeneously mix) each of the plurality of melt streams with its respective added colorant; and (D) feed each of the uniformly mixed and colored plurality of melt streams into a respective spinning machines that turns the polymer into filament for use in manufacturing carpet, rugs, and other products.
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8.发明授权公开(公告)号：US10472737B2
公开(公告)日：2019-11-12
申请号：US15190719
申请日：2016-06-23
摘要： The present invention relates to an extrusion head for generating filaments, extrusion installation and method using said extrusion head, the extrusion head comprising an inlet for the introduction by pressure of a solvent and polymer solution, and an extrusion plate provided with extrusion nozzles configured for forming filaments from the solvent and polymer solution, where the inlet is in fluid communication with a laminar chamber through which the solvent and polymer solution circulates to a peripheral chamber from which it is radially distributed into a central chamber in which the extrusion plate is arranged, and where the laminar chamber is in fluid communication with an excess solvent outlet, and the central chamber is in fluid communication with an excess solution outlet.
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公开(公告)号：US20170350039A1
公开(公告)日：2017-12-07
申请号：US15542406
申请日：2015-11-18
摘要： A spinning beam for producing melt-spun filaments, in which liquid plastics material is conveyed via an externally arranged extruder to at least one pump, which conveys the liquid plastics material to at least one spin pack having a spinneret, at least the pump and the spin pack being heated by a heat transfer medium which is heated in a boiler. The pump, the boiler and an opening for receiving a spin pack are arranged in a modular assembly, which can be installed and fixed singly, or in a plurality one behind the other, in a frame of the spinning beam.
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公开(公告)号：US09296889B2
公开(公告)日：2016-03-29
申请号：US14591330
申请日：2015-01-07
IPC分类号： C08K5/41 , C08L33/20 , D01D1/02 , D01D4/06 , D01D5/06 , D01F6/18 , D01F6/38 , B01F1/00 , B01F5/06
CPC分类号： C08L33/20 , B01F1/0022 , B01F5/0602 , C08L2201/54 , C08L2203/12 , D01D1/02 , D01D4/06 , D01D5/06 , D01F6/18 , D01F6/38 , D10B2321/10
摘要： A process for the preparation of a homogeneous spinning solution for the production of acrylic fibers comprising: i) preparation of a homogeneous suspension by mixing a powder homopolymer or copolymer of acrylonitrile with a mixture of DMSO/water ranging from 94.5/5.5 to 97/3% w/w at a temperature ranging from 5° C. to 10° C., said mixing being carried out in a time from 5 to 30 minutes, by spraying a stream of the DMSO/water solvent onto a stream of powder homopolymer or copolymer of acrylonitrile, disgregated and premixed; ii) heating the homogeneous suspension from step i) to a temperature from 70° C. to 150° C. in a time from 0.5 to 30 minutes, until the complete dissolution of the homopolymer or copolymer and the formation of a homogeneous solution. This spinning solution is then fed to a storage tank or to the spinning line.
摘要翻译： 制备用于制备丙烯酸纤维的均匀纺丝溶液的方法，其包括：i）通过将粉末均聚物或丙烯腈共聚物与DMSO /水的混合物混合制备均匀的悬浮液，其范围为94.5 / 5.5至97/3 在5℃至10℃的温度范围内的w / w％，所述混合在5至30分钟的时间内通过将DMSO /水溶剂流喷射到粉末均聚物流或 丙烯腈共聚物，分散和预混合; ii）在0.5至30分钟的时间内将来自步骤i）的均匀悬浮液加热至70℃至150℃的温度，直到均聚物或共聚物完全溶解并形成均匀溶液。 然后将该纺丝溶液送入储罐或纺纱线。
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